# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-27 15:19:12 EDT # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 05454500 Iowa River at Iowa City, IA # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 05454500 1851-06-00 70000 7,Bd 24.10 5,Bd USGS 05454500 1881-07-17 51000 7 21.10 USGS 05454500 1903-06-03 22500 15.00 USGS 05454500 1904-03-25 9880 8.30 USGS 05454500 1905-06-10 9740 8.80 USGS 05454500 1906-03-02 11900 10.20 USGS 05454500 1907-07-15 13000 2 USGS 05454500 1908-06-03 6000 2 USGS 05454500 1909-07-07 12500 2 USGS 05454500 1910-03-09 12600 2 USGS 05454500 1911-02-17 17200 2 USGS 05454500 1912-04-04 20000 2 USGS 05454500 1913-03-24 7030 2 USGS 05454500 1914-09-15 9620 2 10.60 USGS 05454500 1915-02-18 20000 2 USGS 05454500 1916-03-26 16100 13.50 USGS 05454500 1917-03-29 17500 2 USGS 05454500 1918-06-08 42500 19.60 USGS 05454500 1919-05-07 13800 12.00 USGS 05454500 1920-03-18 8300 9.40 USGS 05454500 1921-09-21 15600 12.70 USGS 05454500 1922-04-11 5880 6.60 USGS 05454500 1923-04-07 8590 9.70 USGS 05454500 1924-07-01 19900 15.30 USGS 05454500 1925-03-21 1590 3.44 USGS 05454500 1926-09-23 17800 14.50 USGS 05454500 1927-05-24 10900 11.10 USGS 05454500 1927-10-06 10000 10.60 USGS 05454500 1929-03-16 21900 16.10 USGS 05454500 1930-06-15 13600 13.30 USGS 05454500 1931-09-28 2790 4.10 USGS 05454500 1931-12-01 7880 9.20 USGS 05454500 1933-04-10 8700 10.00 USGS 05454500 1934-07-17 2140 3.60 USGS 05454500 1935-03-11 8710 9.80 6 USGS 05454500 1936-03-15 12900 12.00 USGS 05454500 1937-03-07 17100 14.60 USGS 05454500 1938-01-24 5000 2 6.80 1 USGS 05454500 1939-03-12 9870 10.40 USGS 05454500 1940-03-22 3020 4.20 USGS 05454500 1941-03-21 7490 8.50 USGS 05454500 1942-06-13 7800 8.90 USGS 05454500 1943-06-02 10600 11.10 USGS 05454500 1944-05-25 31100 18.00 USGS 05454500 1945-03-26 9560 10.30 USGS 05454500 1946-01-09 14800 13.30 USGS 05454500 1947-06-17 33800 18.60 USGS 05454500 1948-03-19 18000 14.50 USGS 05454500 1949-03-10 14100 13.00 USGS 05454500 1950-03-11 13700 12.80 USGS 05454500 1951-04-03 15700 13.70 USGS 05454500 1952-03-17 10400 10.70 USGS 05454500 1953-02-20 11900 11.85 USGS 05454500 1954-07-03 7690 8.31 USGS 05454500 1955-04-24 4600 5.65 USGS 05454500 1956-08-31 3100 3.95 USGS 05454500 1957-06-25 4700 5.70 USGS 05454500 1958-09-07 5000 5.95 USGS 05454500 1959-04-14 9380 6 10.40 USGS 05454500 1960-04-16 10700 6 11.28 USGS 05454500 1961-03-13 9940 6 10.73 USGS 05454500 1962-07-14 12300 6 12.35 USGS 05454500 1963-03-20 8220 6 9.18 USGS 05454500 1964-06-27 3000 6 3.74 USGS 05454500 1965-04-24 11100 6 11.74 USGS 05454500 1966-02-10 10100 6 10.80 USGS 05454500 1967-06-07 4420 6 5.16 USGS 05454500 1967-11-02 3310 6 3.85 USGS 05454500 1969-07-27 15000 6 13.93 USGS 05454500 1970-03-10 8540 6 9.94 USGS 05454500 1971-02-26 11100 6 11.90 USGS 05454500 1972-07-17 10600 6 11.54 USGS 05454500 1973-05-01 11300 6 22.04 6 USGS 05454500 1974-06-09 11900 6 22.44 USGS 05454500 1975-04-09 10500 6 21.50 USGS 05454500 1976-04-24 7350 6 18.72 USGS 05454500 1977-09-18 5240 6 16.38 USGS 05454500 1978-03-26 9510 6 20.34 USGS 05454500 1979-03-29 10700 6 21.64 USGS 05454500 1980-03-19 5650 6 16.67 USGS 05454500 1981-06-29 6230 6 17.31 USGS 05454500 1982-06-15 10400 6 21.44 USGS 05454500 1983-04-26 9490 6 20.72 USGS 05454500 1984-03-01 9430 6 20.68 USGS 05454500 1985-03-04 10500 6 21.50 USGS 05454500 1986-06-30 10100 6 21.22 USGS 05454500 1986-11-19 6100 6 17.17 USGS 05454500 1988-01-31 4450 6 15.33 USGS 05454500 1989-09-09 3240 6 13.87 USGS 05454500 1990-06-17 13500 6 13.29 USGS 05454500 1991-06-13 13700 6 23.35 USGS 05454500 1992-04-25 8080 6 18.54 USGS 05454500 1993-08-10 28200 6 28.52 USGS 05454500 1994-03-10 9440 6 20.03 2 1993-10-01 20.24 USGS 05454500 1995-04-30 9530 6 20.11 USGS 05454500 1996-05-20 6900 6 17.80 USGS 05454500 1997-02-21 10500 6 20.91 USGS 05454500 1998-04-09 9960 6 20.36 USGS 05454500 1999-06-10 7760 6 18.41 USGS 05454500 2000-07-12 6890 6 17.29 USGS 05454500 2001-03-20 11100 6 20.53 USGS 05454500 2002-08-23 4650 6 15.03 USGS 05454500 2003-05-15 6310 6 16.38 USGS 05454500 2004-06-11 7550 6 17.40 USGS 05454500 2005-05-20 6310 6 16.64 USGS 05454500 2006-04-08 07:30 5030 6 14.92 USGS 05454500 2007-03-23 10100 6 19.20 USGS 05454500 2008-06-15 41100 6 31.53 USGS 05454500 2009-03-15 11000 6 20.07 2 2009-03-16 20.13 USGS 05454500 2010-03-18 11400 6 19.83 2 2010-07-13 20.31 USGS 05454500 2011-02-22 8500 6 18.08 USGS 05454500 2012-05-08 3540 6 13.51 USGS 05454500 2013-06-04 19900 6 24.90 USGS 05454500 2014-07-12 19900 6 25.15 USGS 05454500 2015-06-13 8930 6 18.09 USGS 05454500 2015-12-23 10900 6 20.05 USGS 05454500 2017-04-06 7880 6 17.47 USGS 05454500 2018-09-20 03:00 11000 6 20.01 USGS 05454500 2018-10-06 14:45 16100 6 23.23 USGS 05454500 2020-07-02 08:45 10600 19.23 USGS 05454500 2021-03-10 10:30 7960 16.76 USGS 05454500 2022-05-07 02:30 6940 15.33 USGS 05454500 2023-03-04 14:15 6490 15.44 2 2023-03-03 1015 15.44